What on Earth?

QUEST

Tuesday 26 February 2019  22:00 - 23:00 (60 mins)
Images of the jungles of Colombia lead scientists on a search for El Dorado. And, a bright green swirling spiral appears in the seas of the Persian Gulf. S3/Ep17

What on Earth? (QUEST) Tuesday 26 February 2019 22:00 - 23:00